Excal 1000, Excal II, Sovereign GT, CZ-20, Tiger Shark, Tejon, GTI 1500, Surfmaster Pulse, CZ6a, DFX, AT PRO, Fisher 1235, Surf PI Pro, 1280-X, many more because I enjoy learning them. New Garrett Ca
Depends on where you place your fun. They are like oranges and apples. The GT is definitely deeper and can respond to a gold ring with a nail throught the center unlike a XLT which will mask the ring.